题目内容：

How____it is to see you again.A.happily B.pleased C.glad D.pleasant
The boy is too busy___with the toys___his mother come back home.A.to play;to seeB.to play;seeing

优质解答

D 这是个句式,是It is +adj.+to do sth.这个句式.四个词中A是副词,B是“感到高兴的”,主语应该是人,D是令人愉快愉悦的这个意思,而C亦应该主语为人.
下面的题应该是The boy is too busy playing with the toys to see his mother come back home.这个句子的意思是男孩太忙于玩玩具以至于不能看到他的妈妈回家来.首先这是个too----to结构,另外里面含两短语：be　busy doing 和see sb do sth
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